852570 859168T Mercury Starter Motor | Genuine Used Part

🔧 Product Description

Genuine Mercury / Mariner 9.9HP-15HP Four-Stroke Starter Motor - Part Numbers: 852570 / 859168T

A genuine Mercury starter motor used on Mercury and Mariner 9.9HP and 15HP four-stroke outboards. This electric starter motor is part of the 50-852570 / 50-859168T starter family used on small four-stroke portable engines.

⚙️ Key Features

• Genuine Mercury / Mariner starter motor
• Correct OEM references 852570 and 859168T
• 12-volt electric starter motor
• Used on 9.9HP and 15HP four-stroke outboards
• Cross-references with 50-857065 and 50-859168 starter references

🚤 Compatibility

Commonly used on

• Mercury 9.9HP four-stroke electric-start outboards
• Mercury 15HP four-stroke electric-start outboards
• Mariner 9.9HP and 15HP four-stroke starter systems

Typically suits

• Engine models:
• Mercury 9.9HP 4-Stroke electric-start applications
• Mercury 9.9HP BigFoot 4-Stroke electric-start applications where 50-859168T is specified
• Mercury 15HP 4-Stroke electric-start applications
• Mercury 15HP BigFoot 4-Stroke electric-start applications where 50-859168T is specified
• Mariner 9.9HP 4-Stroke starter applications using 50-852570 / 50-859168T
• Mariner 15HP 4-Stroke starter applications using 50-852570 / 50-859168T
• HP Range: 9.9HP - 15HP
• Engine Type: Mercury / Mariner four-stroke portable outboard
• Year Range: approximately late-1990s to mid-2000s depending on model and serial range
• System Type: Electric starter motor

🔌 Function

The starter motor converts battery power into mechanical cranking force and turns the flywheel to start the engine.

⚠️ Common Signs of Failure

• Starter relay clicks but motor does not turn
• Slow cranking with charged battery
• Starter drive not engaging
• Intermittent hot-start issue
• Corroded terminals or water intrusion
• Worn brushes, armature, bushings or starter drive gear

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 50-859168T later Mercury starter motor reference
• 50-859168 related Mercury starter motor reference
• 50-857065 related Mercury starter motor reference
• 50-852570T related Mercury starter motor reference
• 50-852570 earlier Mercury starter motor reference

OEM / Related Numbers

• 852570
• 50-852570
• 50-852570T
• 857065
• 50-857065
• 859168
• 50-859168
• 859168T
• 50-859168T

Aftermarket / Verified Equivalents

• Recmar: REC50-859168T
• Sierra-style replacement for 50-852570 / 50-859168T
• Aftermarket reference: 50-852570 / 50-859168T

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated